Multiple Temperature Setpoint (MTS)

To be able of transporting a commodity under the best possible temperature scheme, the MP4000 is capable of controlling the temperature through a set of temperatures.

The scheme is defined by user pre programmed temperature setpoints and time periods.

The fix point list for the temperature scheme programming allows for up to nine different sets of temperatures and periods.

  • Nine sets of temperature setpoints.

  • Eight sets of timing in between the nine setpoints.

Example of MTS Log

Trip Actions and States

  • The container is prepared, initiated with setpoints and parameters for the journey and transported to the loading location. The refrigeration unit will, if powered, start approaching the first setpoint.

  • The next setpoint will be approached within the maximum capabilities of the unit, as if a user manually has changed the setpoint.

  • The timing for any period will start when the supply air approach for the setpoint is within the IN RANGE setting. The timing will not stop or restart even though the supply air gets out range.

  • The temperature setting will be kept through the specified period and when the period ends the next set of parameters will be activated.

During the treatment a set of events is made together with the temperature logging to document the journey.

2005/04/27 11:33 KBD Multi Temperature Setting Activity - Option made possible - not yet activated.
2005/04/27 11:33 KBD Multi Temperature Setting Activity – X. set point 0.0C.
2005/04/27 11:33 KBD Multi Temperature Setting – X. Period/Days 7 days.

Activating Multiple Temperature Setpoint

Go to the Configuration > Options Menu enter MULTIPLE SETPOINT (MTS) and choose SELECTABLE.

Starting and Setting Multiple Temperature Setpoint

  1. Go to the Controls menu and enter MTS/CT.

  2. The display will show the Multiple Setpoint selection. Select MULTIPLE SETPOINT and press CONFIRM.

  3. The following screen will appear. Press UP and/or DOWN to change the setpoint to the desired setting, then press and hold CONFIRM to enter the setpoint.

  4. Select MTS Period 1 and press CONFIRM. The following screen will appear. Press UP and/or DOWN to change the period to the desired setting, then press and hold CONFIRM to enter that period.

  5. The following screen will appear. Repeat steps 3 and 4 for Setpoint 2 and Period 2, and for each additional setpoint that is required. Leave the Period Setting at “MTS END” for the final period.

  6. Select BACK as necessary. The Standard Display will appear showing “MTS - Approaching setting 1” indicating MTS is active.

Stopping Multiple Temperature Setpoint

  1. Go to the Controls menu and enter MTS/CT.

  2. The display will show the Multiple Setpoint selection. Select NONE and press and hold ACCEPT.

  3. The Standard Display will appear and “MTS - Approaching setting 1” will disappear. After stopping MTS, the unit will continue running with the last MTS setpoint in action.

Surveillance during the multi-temperature setting trip: During the treatment the normal unit surveillance is kept.

Associated interfaces RMM / REFCON: The RMM must at no time during the journey be able of changing any involving parameters and settings on the controller. The RMM interface will show the ending final/last set point through out the trip, even when setting 1 or 2 etc. is running as active with another set point in use.

Associated tools: LogView must be updated to Version 5.8.2.0 to report the Multi-Temperature Setting events.

Various actions: When the user activates the treatment, a trips start mark and event is automatically made.

Parent topic: Operating Theory